1、 PUBLICLY AVAILABLE SPECIFICATION IEC PAS 62409 First edition2005-06 Real-time Ethernet for Plant Automation(EPA)Reference number IEC/PAS 62409:2005(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 Janu
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8、CHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.PUBLICLY AVAILABLE SPECIFICATIONIEC PAS 62409 First edition2005-06 Real-time Ethernet for Plant Automation(EPA)PRICE CODE IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilize
9、d in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:in
10、mailiec.ch Web:www.iec.ch XJ For price,see current catalogue Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 PAS 62409 IEC:2005(E)CONTENTS INTRODUCTI
11、ON.10 FOREWORD.11 1 Scope.13 2 Normative references.13 3 Common terms and definitions.14 3.1 ISO/IEC 7498-1 Terms.14 3.2 ISO/IEC 8824-1 Terms.15 3.3 ISO/IEC 10731 Terms.15 3.4 IEC 61158-5 Terms.16 3.5 IEC 61804-2 Terms.17 3.6 ISO/IEC 8802-3 Terms.17 3.7 Additional terms and definitions.18 4 Abbrevia
12、ted terms and acronyms.20 5 Conventions.22 5.1 Convention for Object definitions.22 5.2 Conventions for services definitions.23 5.2.1 General.23 5.2.2 Service parameters.23 5.3 Conventions for state machines.24 6 EPA system architecture.25 6.1 Overview.25 6.2 EPA architecture.26 6.2.1 Relationship t
13、o the ISO OSI Reference Model.26 6.2.2 EPA system architecture.27 6.3 Network Topology.29 6.3.1 Overview.29 6.3.2 EPA devices.31 6.4 Communication process between EPA devices.31 6.4.1 Overview.31 6.4.2 EPA link object.32 6.4.3 An example.33 6.5 EPA system configuration and startup.35 6.5.1 Configura
14、tion.35 6.5.2 Device Startup.36 7 EPA data link layer protocol.36 7.1 Overview.36 7.2 DLL model.37 7.2.1 Medium Access Control(MAC).37 7.2.2 Logic Link Control(LLC).37 7.2.3 EPA Communication Scheduling Management Entity(ECSME).37 7.2.4 DLL services.37 7.2.5 Transaction between DLL and PhL.37 7.3 EP
15、A communication scheduling procedure.38 7.3.1 General.38 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.PAS 62409 IEC:2005(E)3 7.3.2 Scheduling procedure.39 7.3.3 Priority.45 7.3.4 Time synchronization.45 7.4 ECSME PDU structure.45 7.
16、4.1 NonPeriodicDataAnnunciation PDU.45 7.4.2 EndofNonPeriodicDataSending PDU.46 7.4.3 EPA PDU.47 7.5 Encoding of ECSME Packet.48 7.5.1 Encoding of NonPeriodicDataAnnunciation message.48 7.5.2 Encoding of EndofNonPeriodicDataSending message.48 7.5.3 Encoding of EPA message.49 8 EPA application layer service definition.49 8.1 Concepts.49 8.1.1 Overview.49 8.1.2 Architectural relationships.49 8.1.3 EPA application layer structure.51 8.1.4 EPA application layer naming and addressing.52 8.1.5 Archite
